Nigel Clough says he is happy with the attacking options at his disposal going into the business end of the season.
During the transfer window, the Blades boss recruited Matty Done and Jason Holt to add competition for places in the final third and the duo, along with another striker already in the squad, earnt praise following Tuesday's win at Notts County.
Clough remarked: "Matty has been very good, not just with his goals, but with his overall performances.
"We are looking very threatening going forward of late, with our width and Jason Holt generally running beyond Matty who is comfortable playing as a lone striker.
"Marc McNulty was also very good and looked sharp when he came on the other night, he was much better than he has been of late and that's encouraging.
"Marc has obviously looked on and seen what Matty Done does and he has to think if I am to get in the team then I need to do the same and work as hard as he does.
"We couldn't have got Matty in the summer, so we had to be patient but thankfully we got him in January and hopefully he will continue to make the difference."
Meanwhile, Clough was delighted to see Terry Kennedy come through the games at Bristol City and Meadow Lane unscathed, the first time the defender has started Saturday, Tuesday games at first-team level since his debut in May 2011.
The Gaffer added: "Terry Kennedy battled on and to play Saturday then Tuesday shows how far he has come in the last twelve months or so."